1, the censorship being asked by US government is less evil (or not at all, depends on your standard) 2, US market is bigger, and even if they can afford to los

1, the censorship being asked by US government is less evil (or not at all, depends on your standard) 2, US market is bigger, and even if they can afford to lose the world's biggest market (no they can't), relocating headquater would be a lot more costly. Moral has a price, it is just a lot harder to determine and even harder to admit.